Analog Research-Technology
Electronics for Serious Audiophiles

The Legato USB-SPDIF Asynchronous Converter


Sampling rate: 44.1 kHz

Frequency accuracy: < 20 ppm, <10 ppm, typical

Output: Transformer coupled, BNC connector, 75 ohms impedance

Output return loss: 0.1 MHz-100 MHz, <28 dB. 1 MHz-10 MHz, <40 dB

Output jitter: < 5 pSec, 50 pSec p-p (Note 1)

Transfer type: USB, asynchronous

Power consumption: <10W

Voltage requirements: 120/240 VAC, 50/60 Hz (Via user-supplied IEC power cord.)

Weight: approx. 3 pounds

Physical dimensions: approx. 9" L x 6.5" W x 2.5" H.

Supplied accesories: BNC-BNC cable, BNC-RCA adaptor

Price: $500

(Note 1: Measured via Wavecrest DTS-2077 Communications Signal Analyzer)

For information, or to order one:




ANALOG RESEARCH TECHNOLOGY: Years of design experience in all phases of analog electronics, ranging from DC to microwaves.


Typical listener/user comments:

"What a sweet spot!  You don't have to sit with your head in a vise!"

"Wow.  My search is over!"

"Now THAT'S what I wanted all along!" 

"I love 'em!"

"These things SING!"